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virtio-blk: avoid qdev property definition duplication 

It becomes unwiedly to duplicate all virtio-blk qdev property
definitions due to an #ifdef.  The C preprocessor syntax makes it a
little hard to resolve this cleanly but we can extract the #ifdef and
call a macro it defines later.

Avoiding duplication is important since it will only get worse when we
move the x-data-plane qdev property here too.  We'd have a combinatorial
explosion since x-data-plane has its own #ifdef.

Suggested-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
This commit is contained in:
Stefan Hajnoczi 2014-06-18 17:58:29 +08:00
parent ef7c7ff6d4
commit dc80ca6cd6
1 changed files with 6 additions and 8 deletions
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14
include/hw/virtio/virtio-blk.h
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@ -156,21 +156,19 @@ typedef struct VirtIOBlockReq {
DEFINE_VIRTIO_COMMON_FEATURES(_state, _field)
#ifdef __linux__
#define DEFINE_VIRTIO_BLK_PROPERTIES(_state, _field) \
DEFINE_BLOCK_PROPERTIES(_state, _field.conf), \
DEFINE_BLOCK_CHS_PROPERTIES(_state, _field.conf), \
DEFINE_PROP_STRING("serial", _state, _field.serial), \
DEFINE_PROP_BIT("config-wce", _state, _field.config_wce, 0, true), \
DEFINE_PROP_BIT("scsi", _state, _field.scsi, 0, true), \
DEFINE_PROP_IOTHREAD("x-iothread", _state, _field.iothread)
#define DEFINE_VIRTIO_BLK_PROPERTIES_LINUX(_state, _field) \
DEFINE_PROP_BIT("scsi", _state, _field.scsi, 0, true),
#else
#define DEFINE_VIRTIO_BLK_PROPERTIES_LINUX(_state, _field)
#endif
#define DEFINE_VIRTIO_BLK_PROPERTIES(_state, _field) \
DEFINE_VIRTIO_BLK_PROPERTIES_LINUX(_state, _field) \
DEFINE_BLOCK_PROPERTIES(_state, _field.conf), \
DEFINE_BLOCK_CHS_PROPERTIES(_state, _field.conf), \
DEFINE_PROP_STRING("serial", _state, _field.serial), \
DEFINE_PROP_BIT("config-wce", _state, _field.config_wce, 0, true), \
DEFINE_PROP_IOTHREAD("x-iothread", _state, _field.iothread)
#endif /* __linux__ */
void virtio_blk_set_conf(DeviceState *dev, VirtIOBlkConf *blk);